Woodwork and mechanical drawing . FIG. 143. — 61 — LUMBERING The trees are cut down. The winter time is the best timefor cutting, as there is less sap in the tree at this time of theyear. The summer is the next best, the fall and the spring beingthe least favorable times. The trees are stripped of theirbranches, and shipped to the saw mill. Here they are sawedinto timbers, planks, boards, etc. Seasoning. Lumber cut from freshly felled trees is not fitfor use in permanent structures of any kind, as it is green. It

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Keywords: ., bo, bookcentury1900, bookdecade1910, booksubjectmechanicaldrawing